Curtain fastening device



FIG. 1 is a front elevation view of a curtain fastening device showingmy new design, the back elevation view being a mirror image;

FIG. 2 is a left elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top view thereof, the bottom view being a mirror image; and,

FIG. 5 is a top-front-left side perspective view thereof.

I claim, the ornamental design for a curtain fastening device, as shownand described.